Working my way toward being a Full Stack Engineer. I work for a state University leading the Systems Team, looking to chart a future of the data center and how it looks to build into the cloud in a responsible and innovative manner. This blog is largely a place to stash things I pick up in daily work life and pursuit of knowledge.
Monday, August 5, 2013
Some random Layer 2 thoughts
802.1q inserts 4 bytes into the frame header and recalculates the FCS, and this identifies the VLAN. This is called a "tag."
VTP traffic is sent over VLAN1, so all trunks must be configured to send traffic on that VLAN.
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